Nadir Panel - external view

An external view of the Nadir (Earth Facing) panel. The antennae are mounted for the primary S-Band (seen here with its anechoic cap fitted to allow testing without radiating RF), the X-Band (which is not mounted in this picture) and the DORIS antenna used to receive the signals when the spacecraft passes over the DORIS beacons. The small bundles seen are the test thermocouples fitted in preparation for the environmental testing phase. The orange areas are the radiator panels for the units mounted behind.